Capturing lightness between contours

Homogeneously coloured bars may exhibit lightness differences at the intersections. A well-known example is the Hermann grid illusion, where crossing white bars on a black background show dark patches at the crossings. Jung (1973, Handbook of Sensory Physiology volume VII/3, pp 1-152) found that the dark patches persist when thin outlines are drawn at the intersections, and are even visible in foveal vision. Recently, it has been shown that making distortions to the contours of a Hermann grid-like configuration results in the disappearance of the illusory dark spots (Geier et al, 2008 Perception 37 651 665). We show that thin outlines at the crossings of the distorted Hermann grid induce lightness differences in the same direction as in the original Hermann grid illusion, even in foveal vision and in displays consisting of two crossing bars. Our experiments reveal that the induced lightness differences are independent of the luminance polarity and shape of the contours at the intersection. We suggest that the effect results from lateral inhibition and an additional spreading and capturing of these differences between luminance contours. A similar capturing between collinear contours may play a role in peripheral vision in the original Hermann grid.     

Impaired emotion recognition in music in Parkinson’s disease

Music has the potential to evoke strong emotions and plays a significant role in the lives of many people. Music might therefore be an ideal medium to assess emotion recognition. We investigated emotion recognition in music in 20 patients with idiopathic Parkinson’s disease (PD) and 20 matched healthy volunteers. The role of cognitive dysfunction and other disease characteristics in emotion recognition was also evaluated.     

VARIETIES OF RELIGIOUS COGNITION: A COMPUTATIONAL APPROACH TO SELF-UNDERSTANDING IN THREE MONOTHEIST CONTEXTS

This study considered representations of divine and human others in the self-understanding of monotheists from three religions. Self-understanding was conceptualized on the basis of semantic and episodic knowledge in narrative response data. Given the importance of social context in the formation of cognitive schemas, the project emphasized self-understanding in a comparative religious design. The sample included sixty nominated religious exemplars who responded to a structured interview. Schemas were subsequently mapped for Jews, Muslims, and Christians by comparison of self and other representations in a computational model known as latent semantic analysis (LSA). Findings indicated that representation of the divine is far removed from parents in cognitive schemas for all participants. Unlike Jews and Christians, Muslims appear to represent human others on the basis of self-understanding which principally references the divine. When considered in a computational semantic space, exemplars generally represent the self in a manner corresponding with divine and peer figures.     

The role of psychopathic personality disorder in violence risk assessments using the HCR-20

Antisocial and psychopathic traits are essential to evaluate when assessing risk for violence using the HCR-20. The role of the PCL-R on the HCR-20 was investigated using a series of meta-analytic tests. Across 34 samples in which both tools were rated, AUCs for violence were similar (～.69), and exclusion of the psychopathy item (H7) did not reduce the HCR-20's accuracy. Quantitative synthesis of results from multivariate analyses conducted in 7 raw datasets that used both tools demonstrated that the average probability of observing violence for every point increase on the HCR-20 (without H7), while controlling for the PCL-R, was 23%, whereas for the PCL-R it was -1%. The HCR-20 (without H7) added incremental validity to the PCL-R, whereas the converse was not true, and only the HCR-20 (without H7) possessed unique predictive validity. Results suggest the HCR-20's predictive validity was not negatively impacted by excluding the PCL-R. Areas for future study are discussed, including research on various ways to assess and incorporate into risk assessment personality traits related to violence.     

Linking personality to interpersonal citizenship behaviour: The moderating effect of empathy

To account for generally low direct relationships between Big‐Five personality traits and interpersonal citizenship behaviour (ICB), researchers have suggested that Big‐Five traits are associated with such helping‐related behaviour in interactive rather than direct fashion. This study investigated empathy as a potential moderator of Big‐Five trait – ICB relations. Hypotheses were tested with data obtained from employees of a youth treatment facility and their supervisors. Results provided evidence that empathy interacts with three Big‐Five personality traits, suggesting traits functioning at conceptually different hierarchical levels may jointly explain specific behaviours. Empathy could play an important role in understanding connections between these Big‐Five traits and ICB.     

Financial problems and psychological distress: Investigating reciprocal effects among business owners

Building on conservation of resources theory and the dynamic equilibrium model, this three‐wave longitudinal study among 260 Dutch agricultural business owners (1‐year time intervals) investigated reciprocal relationships between the financial situation of the business and psychological distress. Results of structural equation modelling analyses revealed a negative spiral of farm decline, in which psychological variables played a key role. Experiencing financial problems predicted psychological distress, and acted as a self‐fulfilling prophecy by strengthening intentions to quit the business, which predicted a deterioration of the objective financial situation of the business 1 year later. Moreover, farmers experiencing more psychological distress were more likely to get caught in this negative spiral than business owners with better mental health, because they experienced more financial problems, irrespective of their objective financial situation. Long‐term psychological distress rather than temporary fluctuations in distress levels accounted for this effect.     

A meta‐analysis of the predictors and consequences of organization‐based self‐esteem

Organization‐based self‐esteem (OBSE), which represents employees' beliefs about their own value and competence as organizational members, has attracted much recent research attention. In the current paper, we identified several theoretically based predictors and consequences of OBSE. We then conducted a meta‐analysis examining the relationships between OBSE and these variables. Results indicated that several hypothesized predictors, including the work environment and employee dispositions, were related to OBSE. Furthermore, OBSE was related to several hypothesized outcome variables including job satisfaction, organizational commitment, employee health, job performance, and organizational citizenship behaviour. As expected, OBSE generally yielded stronger relationships with work‐related variables than did general self‐esteem and we found evidence that OBSE mediated the relationships between general self‐esteem and work‐related criteria.     

Fit with what? The influence of multiple self‐concept images on organizational attraction

This study tests the applicability of image congruity theory to the employment decision‐making process. A sample of workers from a variety of jobs/organizations (N = 193) read a series of job advertisements presenting unique organizational personalities, rated the extent to which these personalities matched their self‐concept perceptions, and reported evaluations of organizational attraction. In accordance with the tenets of image congruity theory, results suggest prospective job seekers are attracted to organizations with personalities they perceive as similar to their own actual and ideal self‐concepts. Actual congruence exerted a greater influence on organizational attraction than did ideal congruence. However, both ideal and actual image congruence explained significant unique variance in organizational attraction.     

How leaders stimulate employee learning: A leader–member exchange approach

This study investigated how leader–member exchange (LMX), goal setting, and feedback are related to employee engagement in learning activities. Two different mechanisms were proposed: a mediating mechanism holding that LMX elicits specific leader behaviours (i.e., goal setting and feedback) which would mediate the LMX‐learning relationship, and a moderating mechanism, holding that LMX would strengthen the effect of these leader behaviours. A sample of 1,112 employees from 7 organizations completed questionnaires that measured LMX, goal specificity, feedback, and self‐reports of employee engagement in learning activities. The 233 direct leaders of these employees completed questionnaires that measured goal difficulty and leader ratings of employee engagement in learning activities. Multi‐level analysis showed that goal difficulty and goal specificity mediated the relationship between LMX and employee engagement in learning activities, and that LMX moderated the relationship of goal difficulty with employee engagement in learning activities. With these findings, the present study contributes to the literatures on LMX, goal setting, and employee development.